Transfer Case Assembly

INSPECTION PROCEDURES FOR DIAGNOSTIC TROUBLE CODES
DESCRIPTIONS
TOD control unit starts self-diagnostic function after the ignition is switched ON.
If TOD control unit detects failure for each circuit and component by comparing condition of the system with limited condition set inside TOD control unit, TOD control unit stores the failure code.
The failure code stored in TOD control unit can be confirmed by scan tool and then outputs the four-digit code to the scan tool when the scan tool is connected to TOD data link connector in the engine room.
Please refer to the self-diagnosis procedure for TOD(auto) in detail as followed.

DIAGNOSTIC TROUBLE CODE SUMMARY